Which form of regulation is better for solving problems, protecting consumers and the environment and encouraging rational economic planning-regulation by government or regulation by industry through free markets and incentives? Michigan State University Forestry Professor and Mackinac Center Scholar Dr. Potter-Witter argues for a self-certification model that could be applied to other industries. She also provides a thorough review of the Michigan timber market and a timely survey of literature on occupational licensing. 23 pages.